PPGI iyishidi lesimbi elinombala elinokwakhiwa kwe-GI (Iron e-Galvanized) njengemathiriyeli eyisisekelo, kanti i-PPGL iyishidi lesimbi elinombala elinokwakhiwa kwe-GL (Galvalume) njengemathiriyeli eyisisekelo. Izifutho ezisebenziselwa phezulu (njengokuthi i-polyester, i-silicon-modified polyester, kanye ne-fluorocarbon) zinikeza ukumelana nezimo zezulu okuhle, kuvumela le mathiriyeli ukuba ibekezelele imisebe ye-UV, imvula ye-asidi, nezinye izinto ezisemvelweni, kuqinisekisa ukugcina umbala nokukhanya isikhathi eside.

PPGI isebenzisa insimbi egaywe nge-galvanized njengemathiriyeli eyisisekelo, nezingxube ze-zinc ezinikeza ukuvikelwa okuhle kokumelana nokugqwala, okwenza kube kufanelekile ezindaweni ezijwayelekile zokugqwala. PPGL, ngakolunye uhlangothi, isebenzisa insimbi egaywe nge-aluminium-zinc njengemathiriyeli eyisisekelo, futhi ingxube ye-aluminium-zinc (55% aluminium, 43.4% zinc, 1.6% silicon) inikeza ukumelana nokugqwala okuhle, ikakhulukazi ikhuluma kahle ezindaweni ezinzima.

Zonke i-PPGI ne-PPGL zikhombisa ukusebenza kahle kokucubungula, okwenza zifaneleke ekwenzeni izimo eziyinkimbinkimbi ngokuhlikihla, ukujolisa, nokuhlikihla. Ukunamathela okuqinile kwemigqa kuvimbela ukuhamba ngesikhathi sokucubungula. Ngaphezu kwalokho, inqubo yokupenda ngaphambi kwepende yehlisa isidingo sokupenda endaweni, yehlisa ukukhishwa kwezinto eziphilayo eziguquguqukayo (i-VOCs) futhi ihlangabezana nezidingo zemvelo.